Material conveying method, device and mixing station

Abstract

The application provides a material conveying method and device and a mixing station. The kind and weight of multiple initial materials of a target material are determined according to the target material, the feeding time of each initial material from a material bin to a waiting hopper is calculated according to the kind and weight of each initial material, and finally the feeding sequence and starting feeding time of the initial material are determined according to the feeding time of the initial material and the state information of the waiting hopper. Thus, the waiting time of the waiting hopper is reduced or avoided, the total feeding time of the waiting hopper can be accurately controlled, the unloading time of the waiting hopper can be accurately set, unloading waiting and incomplete unloading are avoided, the material in the waiting hopper is prevented from sticking in the waiting hopper for a long time, and the efficiency of material conveying is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mixing station, in particular to a material conveying method, device and mixing station. BACKGROUND

[0002] At present, in the use process of the concrete mixing station, the aggregate and other materials are mainly transported to the aggregate waiting hopper by the belt conveyor. When the aggregate is completely put into the aggregate waiting hopper, the setting of the opening and unloading time of the aggregate waiting hopper is usually set by the program personnel according to experience. For different configurations of the mixing station, the lengths of the belt conveyor are different, and the unloading sequences of the aggregate are also different, which leads to a large difference in the setting of the opening and unloading time of the aggregate waiting hopper. If the setting time is too short, it may cause the aggregate to be unloaded into the mixer before the door is closed. If the setting time is too long, it may prolong the mixing cycle and affect the working efficiency of the mixing station. SUMMARY

[0003] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide a material conveying method, device and mixing station, which solve the problem of low working efficiency caused by manual setting of the feeding and unloading time.

[0004] According to one aspect of the present application, a material conveying method is provided, comprising: determining the types and weights of a plurality of initial materials according to a target material; wherein the target material is obtained by combining the plurality of initial materials; calculating the feeding time of each initial material according to the type and weight of each initial material; wherein the feeding time represents the time when the initial material is completely arrived at the waiting hopper from the material bin; and determining the feeding sequence and starting feeding time of the plurality of initial materials according to the feeding time of the plurality of initial materials and the state information of the waiting hopper.

[0005] In an embodiment, the determining the feeding sequence and starting feeding time of the plurality of initial materials according to the feeding time of the plurality of initial materials and the state information of the waiting hopper comprises: if the weight of the material in the waiting hopper is less than a preset weight, determining the feeding sequence and starting feeding time of the plurality of initial materials according to the feeding time of the plurality of initial materials and the state information of the waiting hopper, and performing the material conveying of the plurality of initial materials according to the feeding sequence and starting feeding time of the plurality of initial materials.

[0006] In an embodiment, the calculating the feeding time of each initial material according to the type and weight of each initial material comprises: acquiring the transmission distance between the material bin storing the initial material and the waiting hopper according to the type of the initial material; and calculating the feeding time of the initial material according to the transmission distance, the transmission speed, the unloading speed of the material bin and the weight of the initial material.

[0007] In an embodiment, the state information of the standby hopper includes weight information of materials in the standby hopper and unloading speed of the standby hopper; and the determining of the feeding sequence and the starting feeding time of the multiple initial materials according to the feeding time of the multiple initial materials and the state information of the standby hopper includes: calculating the remaining unloading time of the standby hopper according to the weight information of materials in the standby hopper and the unloading speed of the standby hopper; and determining the feeding sequence and the starting feeding time of the multiple initial materials according to the remaining unloading time and the feeding time of the multiple initial materials.

[0008] In an embodiment, the determining of the feeding sequence and the starting feeding time of the multiple initial materials according to the remaining unloading time and the feeding time of the multiple initial materials includes: selecting the initial material with the feeding time greater than or equal to the remaining unloading time and the smallest difference between the remaining unloading time as the first in the feeding sequence.

[0009] In an embodiment, the determining of the feeding sequence and the starting feeding time of the multiple initial materials according to the remaining unloading time and the feeding time of the multiple initial materials includes: determining the feeding sequence of the multiple initial materials according to the transmission distance between the material bin of the multiple initial materials and the standby hopper from small to large.

[0010] In an embodiment, the determining of the feeding sequence and the starting feeding time of the multiple initial materials according to the remaining unloading time and the feeding time of the multiple initial materials includes: determining the starting feeding time of the first initial material in the feeding sequence according to the remaining unloading time.

[0011] In an embodiment, the determining of the feeding sequence and the starting feeding time of the multiple initial materials according to the feeding time of the multiple initial materials and the state information of the standby hopper includes: determining the starting feeding time of the subsequent initial material of the current initial material according to the feeding time of the current initial material in the feeding sequence.

[0012] In an embodiment, the determining the start time of the subsequent initial material of the current initial material according to the feeding time of the current initial material in the feeding sequence comprises: obtaining a material bin distance of the material bin of the current initial material and the material bin of the subsequent initial material of the current initial material along a material conveying direction; calculating a material bin time difference of the subsequent initial material of the current initial material from a material conveying device position corresponding to the material bin of the subsequent initial material of the current initial material to a material conveying device position corresponding to the material bin of the current initial material according to the material bin distance and a conveying speed; and determining the start time of the subsequent initial material of the current initial material according to the material bin time difference and the feeding time of the current initial material.

[0013] In an embodiment, the material conveying method further comprises: performing an opening or closing operation of the unloading door of the standby hopper according to the state information of the standby hopper and the required weight of the target material.

[0014] According to another aspect of the present application, a material conveying device is provided, comprising: an initial material determining module configured to determine the types and weights of a plurality of initial materials according to a target material; wherein the target material is obtained by combining the plurality of initial materials; a feeding time calculating module configured to calculate the feeding time of each of the initial materials according to the type and weight of each of the initial materials; wherein the feeding time represents the time when the initial material is completely fed to a standby hopper; and a feeding strategy determining module configured to determine the feeding sequence and start time of the plurality of initial materials according to the feeding time of the plurality of initial materials and the state information of the standby hopper.

[0015] According to another aspect of the present application, a mixing station is provided, comprising: a material bin, a material conveying device, a standby hopper, a mixing host, and a controller, wherein the controller is configured to execute any of the above-mentioned material conveying methods.

[0016] In an embodiment, the mixing station further comprises: a standby hopper weighing device, wherein the standby hopper weighing device is in communication connection with the controller, and the standby hopper weighing device is configured to collect the weight of the material in the standby hopper and send the weight information of the material in the standby hopper to the controller.

[0017] The application provides a material conveying method, device and mixing station. The kind and weight of multiple initial materials of a target material are determined according to the target material, the feeding time of each initial material from a material bin to a waiting hopper is calculated according to the kind and weight of each initial material, and finally the feeding sequence and starting feeding time of the initial materials are determined according to the feeding time of the initial materials and the state information of the waiting hopper. That is, the kind and weight of the required initial materials are determined according to the target material information, the feeding time of each initial material is calculated, the optimal feeding sequence and starting feeding time are determined in combination with the state information of the waiting hopper, so that the waiting time of the waiting hopper is reduced or avoided, the total feeding time of the waiting hopper can be accurately controlled, the unloading time of the waiting hopper can be accurately set, unloading waiting and incomplete unloading are avoided, the materials in the waiting hopper can be prevented from sticking in the waiting hopper for a long time, and the material conveying efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:

[0019] Figure 1 is a schematic diagram of a system structure to which an exemplary embodiment of the present application is applied.

[0020] Figure 2 is a flowchart of a material conveying method according to an exemplary embodiment of the present application.

[0021] Figure 3 is a flowchart of a method for calculating the feeding time of initial materials according to an exemplary embodiment of the present application.

[0022] Figure 4 is a flowchart of a method for determining a feeding strategy according to an exemplary embodiment of the present application.

[0023] Figure 5 is a flowchart of a method for determining a starting feeding time according to an exemplary embodiment of the present application.

[0024] Figure 6 is a flowchart of a method for determining a starting feeding time according to another exemplary embodiment of the present application.

[0025] Figure 7 is a flowchart of a material conveying method according to another exemplary embodiment of the present application.

[0026] Figure 8is a structural schematic view of a material conveying device provided by an example embodiment of the present application.

[0027] Figure 9 is a structural schematic view of a material conveying device provided by another example embodiment of the present application.

[0028] Figure 10 is a structural view of a mixing station provided by an example embodiment of the present application. DETAILED DESCRIPTION

[0029] In the following, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein.

[0030] Summary of the application

[0031] At present, many products are obtained by combining and mixing multiple materials, for example, the products produced by a cement mixing station are obtained by combining and mixing multiple materials. Generally, the materials are conveyed to a material hopper by a belt, and then are put into a mixing or combining device for mixing or combining, so as to obtain the final product. However, since the distance of each material to the material hopper is different, the required transportation time is different, so that the time of feeding cannot be accurately known, and then it is difficult to grasp the time of unloading the material hopper to the mixing device after the transportation of the material is completed. If the unloading time is too long, the unloading waiting time will be too long, and the production efficiency will be reduced.

[0032] In order to solve the problem of low production efficiency, the present application provides a material conveying method, device and mixing station. The feeding time of each material is calculated, and the state information of the material hopper (including whether the unloading is completed and the remaining unloading amount, etc.) is considered, the feeding sequence of multiple materials and the starting feeding time of each material are adjusted, so as to reduce the waiting time between the unloading completion of the material hopper and the feeding of the material as much as possible, thereby improving the material conveying efficiency and the production efficiency.

[0033] Exemplary system

[0034] The material conveying method and device provided by the present application can be applied to a system that needs to convey multiple materials, such as a mixing station. For example, the material conveying method and device provided by the present application can be applied to a mixing station. Figure 1As shown, the mixing station comprises material bins 1 for storing various initial materials, a mixing main machine 2 for mixing the various initial materials, a standby hopper 3 arranged at the mixing main machine 2 and used for temporarily storing the various initial materials, a material conveying device 4 (comprising a flat belt 41 and an inclined belt 42) arranged between the material bins 1 and the standby hopper 3 and used for conveying the materials, and a controller in communication connection with the material bins 1, the mixing main machine 2, the standby hopper 3 and the material conveying device 4 and used for controlling the actions of the material bins 1, the mixing main machine 2, the standby hopper 3 and the material conveying device 4. After receiving an order (including the type and weight of the target material, etc.), the mixing station can determine the types and corresponding weights of the initial materials required for producing the target material according to the order, and then the initial material corresponding to the material bins 1 can transmit the initial materials of the corresponding weights to the belt, and after the belt conveys all the initial materials to the standby hopper 3, the standby hopper 3 starts to unload to unload all the initial materials to the mixing main machine 2 for mixing to obtain the final product (such as concrete, etc.), and after the standby hopper 3 finishes unloading, the initial materials of the next batch or the next order can be conveyed to the standby hopper 3.

[0035] In an embodiment, the mixing station in the present application can further comprise a standby hopper weighing device arranged at the standby hopper 3 and in communication connection with the controller, and used for collecting the weight of the materials in the standby hopper 3 and sending the weight information of the materials in the standby hopper 3 to the controller to realize the accurate control of the unloading operation of the standby hopper 3 by the controller.

[0036] Exemplary method

[0037] Figure 2 is a flowchart of a material conveying method provided by an exemplary embodiment of the present application. As shown, the material conveying method is applied to the controller of the mixing station described above, and the material conveying method comprises the following steps: Figure 2

[0038] Step 210: determining the types and weights of the various initial materials according to the target material; wherein the target material is obtained by combining the various initial materials.

[0039] After the customer places an order, the types and weights of the various initial materials are determined according to the target material (or product) requirement in the customer's order, for example, the order contains the formula, ratio or index requirement of the target material, and according to the formula, ratio or index requirement, the types and corresponding weights of the initial materials required for producing the target material can be obtained (the way of obtaining can be to obtain from the past formula table), that is, the target material in the order information is split into the various initial materials actually required in production, such as aggregates (including stones, sand, etc.).

[0040] ​Step 220: according to the kind and weight of each initial material, the feeding time of each initial material is calculated; wherein the feeding time represents the time when the initial material is completely transported from the material bin to the waiting hopper.

[0041] After obtaining the kind and weight of each initial material needed for the target material, the feeding time of each initial material is calculated, that is, the total time needed for each initial material to be completely transported to the waiting hopper.

[0042] Step 230: according to the feeding time of the initial materials and the state information of the waiting hopper, the feeding sequence and the starting feeding time of the initial materials are determined.

[0043] After the feeding time of each initial material is calculated, the feeding sequence and the starting feeding time of the initial materials are determined in combination with the current state information of the waiting hopper, so as to ensure that the waiting time of the waiting hopper is the shortest and the whole feeding time is also the shortest, thereby improving the material feeding efficiency, and also ensuring that the storage time of all initial materials in the waiting hopper is relatively short, avoiding the sticking of the materials; wherein the starting feeding time represents the time point when the initial material is started to be unloaded from the corresponding material bin. According to the determined starting feeding time and feeding time, the feeding completion time can be accurately obtained, so as to realize the seamless connection between the initial material feeding and the waiting hopper unloading. In the embodiment of the present application, the scale at the material bin of each initial material can be used to measure the initial material with the required weight, and a hopper scale can also be arranged at the waiting hopper to obtain the total weight of the initial material in the waiting hopper in real time, so as to determine the unloading state of the initial material in the waiting hopper (including the remaining amount, etc.), and also to verify the weight of the initial material, avoiding the product defects caused by the scale failure at the single material bin.

[0044] In an embodiment, the specific implementation of step 230 can be: judging whether the state information of the waiting hopper meets the preset condition, wherein the preset condition can be that the weight of the material in the waiting hopper is small; if the weight of the material in the waiting hopper is less than the preset weight (indicating that the remaining unloading time of the material in the waiting hopper is less than a preset time), then according to the feeding time of the initial materials and the state information of the waiting hopper, the feeding sequence and the starting feeding time of the initial materials are determined, and the material feeding of the initial materials is performed according to the feeding sequence and the starting feeding time of the initial materials. That is to say, when the weight of the material in the waiting hopper is small (the corresponding unloading time is less than the time when the material of the next game is transported from the material bin to the waiting hopper), the feeding operation of the next game can be started at this time, so as to reduce the waiting time of the waiting hopper as much as possible, thereby improving the efficiency.

[0045] The application provides a material conveying method, which comprises the following steps: determining the types and weights of initial materials of a target material according to the target material, calculating the feeding time of each initial material from the material bin to the waiting hopper according to the types and weights of the initial materials, and determining the feeding sequence and starting feeding time of the initial materials according to the feeding time of the initial materials and the state information of the waiting hopper. That is, the types and weights of the required initial materials are determined according to the target material information, the feeding time of each initial material is calculated, the optimal feeding sequence and starting feeding time are determined in combination with the state information of the waiting hopper, so that the waiting time of the waiting hopper is reduced or avoided, the total feeding time of the waiting hopper can be accurately controlled, the discharging time of the waiting hopper can be accurately set, the waiting for discharging and incomplete discharging are avoided, the materials in the waiting hopper can be prevented from sticking in the waiting hopper for a long time, and the efficiency of material conveying is improved.

[0046] Figure 3 FIG. 1 is a flow diagram of a method for calculating the feeding time of initial materials according to an example embodiment of the application. As shown in FIG. 1, the method comprises the following steps. Figure 3

[0047] Step 221: acquiring the transmission distance between the material bin storing the initial material and the waiting hopper according to the type of the initial material.

[0048] Generally, the material bins are arranged along the extension direction of the flat belt, that is, the transmission distance between each material bin and the waiting hopper is not equal, and the transmission time of each initial material from the material bin to the flat belt is not equal. Therefore, the transmission distance between the corresponding material bin and the waiting hopper is determined according to the type of the required initial material, so as to acquire the transmission time of the initial material from the flat belt to the waiting hopper.

[0049] Step 222: calculating the feeding time of the initial material according to the transmission distance, the transmission speed, the discharging speed of the material bin and the weight of the initial material.

[0050] After the transmission distance between the material bin storing the initial material and the waiting hopper is acquired, the transmission time of the initial material from the flat belt to the waiting hopper can be calculated in combination with the transmission speed of the flat belt. However, the discharging process of the material bin is not instantaneous, but the initial material is discharged from the discharging port of the material bin to the flat belt at a certain discharging speed. According to the weight of the required initial material and the discharging speed of the corresponding material bin, the discharging time of the initial material can be calculated. The total time from the start of discharging of the material bin to the complete arrival of the corresponding initial material at the waiting hopper is the feeding time, that is, the feeding time = flat belt transmission time + inclined belt transmission time + discharging time. The feeding time of each initial material can be calculated according to the above method.

[0051] Figure 4 ​is a flowchart of a method for determining a feeding strategy according to an example embodiment of the present application. The state information of the waiting hopper includes weight information of the material in the waiting hopper and the unloading speed of the waiting hopper. As shown in Figure 4 The step 230 can include the following steps:

[0052] Step 231: Calculate the remaining unloading time of the waiting hopper according to the weight information of the material in the waiting hopper and the unloading speed of the waiting hopper.

[0053] The weight of the initial material in the waiting hopper can be obtained in real time by setting a hopper scale or other weight / weight sensor at the waiting hopper. Specifically, when the hopper scale is calibrated, the weight displayed on the hopper scale is the weight of the initial material, which can be obtained at this time. When the hopper scale is not calibrated, the weight displayed on the hopper scale is the weight of the initial material and the weight of the waiting hopper body, and the weight of the initial material can be obtained by subtracting the weight of the waiting hopper body in the empty hopper state from the weight displayed on the hopper scale at this time, so as to obtain the total weight of the material in the waiting hopper in real time. According to the total weight of the material in the waiting hopper and the unloading speed of the waiting hopper, the remaining unloading time of the waiting hopper can be calculated, so as to accurately control the start and end time of the unloading of the waiting hopper.

[0054] Step 232: Determine the feeding sequence and start feeding time of the plurality of initial materials according to the remaining unloading time and the feeding time of the plurality of initial materials.

[0055] After obtaining the remaining unloading time of the waiting hopper, the feeding sequence and start feeding time of the plurality of initial materials of the next turn (the material in the waiting hopper is the current turn) are reasonably arranged. That is, the feeding strategy of the initial materials of the next turn is reasonably arranged according to the remaining unloading time of the waiting hopper, so as to realize seamless connection and improve production efficiency and shorten production cycle.

[0056] In an embodiment, the specific implementation of the step 232 can be: selecting the initial material with the feeding time greater than or equal to the remaining unloading time and the smallest difference between the feeding time and the remaining unloading time as the first initial material in the feeding sequence. When arranging the feeding sequence of the initial materials, the initial material with the feeding time slightly greater than or equal to the remaining unloading time of the waiting hopper can be considered as the first feeding initial material, so as to realize seamless connection between the unloading of the waiting hopper and the feeding of the initial materials and shorten the production cycle. In a further embodiment, the feeding sequence of the initial materials can also be arranged according to the principle that the transmission distance between the material bin of the initial material and the waiting hopper increases from small to large, so as to shorten the total feeding time by utilizing the distance difference between the material bins of the initial materials fed in sequence, that is, when the unloading of the material bin close to the waiting hopper is not completed, the unloading of the material bin far from the waiting hopper can be started, so as to fully shorten the feeding cycle.

[0057] In an embodiment, the step 232 can comprise determining the starting time of the first initial material in the feeding sequence according to the remaining unloading time. After determining the type of the first initial material in the feeding sequence, the starting time of the first initial material is determined according to the remaining unloading time. For example, if the remaining unloading time is 10 seconds and the transmission time of the first initial material is greater than or equal to 10 seconds, the current time can be taken as the starting time of the first initial material.

[0058] In a further embodiment, the step 232 can comprise determining the starting time of the subsequent initial material of the current initial material according to the feeding time of the current initial material in the feeding sequence. After obtaining the feeding time of the current initial material in the feeding sequence, i.e., the ending time of the feeding of the current initial material, the starting time of the subsequent initial material can be selected. Of course, in order to further shorten the feeding cycle, the time for the subsequent initial material to be transmitted from its material bin to the corresponding position of the material bin of the current initial material can be calculated based on the transmission distance between the material bin of the subsequent initial material and the material bin of the current initial material, and the feeding of the subsequent initial material can be started at the ending time of the feeding of the current initial material to realize seamless connection of the feeding.

[0059] Figure 5 is a flowchart of a method for determining the starting time of feeding provided by an exemplary embodiment of the present application. As shown in Figure 5 the method can specifically comprise the following steps:

[0060] Step 510: When the first distance between the material bin of the current initial material and the waiting hopper is less than the second distance between the material bin of the subsequent initial material of the current initial material and the waiting hopper, the material bin distance of the material bin of the current initial material and the material bin of the subsequent initial material of the current initial material along the material transmission direction is obtained.

[0061] If the first distance between the material bin of the current initial material and the waiting hopper is less than the second distance between the material bin of the subsequent initial material of the current initial material and the waiting hopper, i.e., the material bin of the current initial material is closer to the waiting hopper than the material bin of the subsequent initial material. At this time, the material bin distance of the material bin of the current initial material and the material bin of the subsequent initial material of the current initial material along the material transmission direction can be obtained to determine the time when the subsequent initial material can be fed in advance.

[0062] Step 520: According to the material bin distance and the transmission speed, the material bin time difference of the subsequent initial material of the current initial material from the position of the material conveying device corresponding to the material bin of the subsequent initial material of the current initial material to the position of the material conveying device corresponding to the material bin of the current initial material is calculated.

[0063] After the bin distance is known, the bin time difference of the subsequent initial material from the position of the material conveying device corresponding to the bin of the subsequent initial material (i.e., the position on the flat belt corresponding to the bin of the subsequent initial material) to the position of the material conveying device corresponding to the bin of the current initial material (i.e., the position on the flat belt corresponding to the bin of the current initial material) is calculated in combination with the conveying speed, i.e., the time in which the subsequent initial material can be pre-loaded before the current initial material is finished loading is obtained.

[0064] Step 530: determining the starting loading time of the subsequent initial material of the current initial material according to the bin time difference and the loading time of the current initial material.

[0065] According to the bin time difference and the loading end time of the current initial material, the starting loading time of the subsequent initial material is equal to the loading end time of the current initial material minus the bin time difference. For example, when the first distance between the bin of the current initial material and the waiting hopper is less than the second distance between the bin of the subsequent initial material of the current initial material and the waiting hopper, the starting loading time of the subsequent initial material = the loading time of the current initial material + the unloading time of the current initial material - the bin time difference (i.e., the distance between the bins / the conveying speed). It should be understood that since all the initial materials will be loaded into the waiting hopper for mixing, the present embodiment can also use stack conveying, i.e., the bin corresponding to the current initial material and the bin corresponding to the subsequent initial material are unloaded at the same time, and the distance between the bin and the waiting hopper is less than the distance between the bin corresponding to the current initial material and the waiting hopper, and other bins are unloaded after a certain time, which is at least greater than the time for the belt to run from the bin corresponding to the current initial material to the bin.

[0066] Figure 6 is a flowchart of a method for determining the starting loading time provided by another exemplary embodiment of the present application. As shown in Figure 6 , the method can specifically include the following steps:

[0067] Step 610: when the first distance between the bin of the current initial material and the waiting hopper is greater than the second distance between the bin of the subsequent initial material of the current initial material and the waiting hopper, the bin distance of the bin of the current initial material and the bin of the subsequent initial material of the current initial material along the material conveying direction is obtained.

[0068] If the first distance between the bin of the current initial material and the waiting hopper is greater than the second distance between the bin of the subsequent initial material of the current initial material and the waiting hopper, i.e., the bin of the current initial material is farther away from the waiting hopper than the bin of the subsequent initial material. At this time, the bin distance of the bin of the current initial material and the bin of the subsequent initial material of the current initial material along the material conveying direction can be obtained to determine the time in which the subsequent initial material can be loaded.

[0069] Step 620: According to the material bin distance and the conveying speed, the material bin time difference of the subsequent initial material from the material bin corresponding to the material conveying device position of the subsequent initial material to the material bin corresponding to the material conveying device position of the current initial material is calculated.

[0070] After learning the material bin distance, combined with the conveying speed, the material bin time difference of the subsequent initial material from the material bin corresponding to the material conveying device position of the subsequent initial material to the material bin corresponding to the material conveying device position of the current initial material is calculated, that is, the time when the subsequent initial material can be loaded after the current initial material ends loading is obtained.

[0071] Step 630: According to the material bin time difference and the loading time of the current initial material, the starting loading time of the subsequent initial material of the current initial material is determined.

[0072] According to the material bin time difference and the loading end time of the current initial material, the starting loading time of the subsequent initial material is equal to the loading end time of the current initial material plus the material bin time difference. For example, when the first distance between the material bin of the current initial material and the waiting hopper is greater than the second distance between the material bin of the subsequent initial material of the current initial material and the waiting hopper, the subsequent initial material loading time = current initial material loading time + current initial material unloading time + material bin time difference (i.e. material bin distance / conveying speed).

[0073] Figure 7 is a flowchart of a material conveying method provided by another exemplary embodiment of the present application. As shown in Figure 7 the above-mentioned material conveying method can further include:

[0074] Step 240: According to the state information of the waiting hopper and the required weight of the target material, the opening or closing operation of the unloading door of the waiting hopper is performed.

[0075] When the weight of the material in the waiting hopper reaches the required weight of the target material and the bin door of the waiting hopper is in a closed state, the bin door of the waiting hopper can be opened to unload the material in the waiting hopper into the mixing main machine for mixing operation. Of course, the bin door of the waiting hopper can also be opened when the weight of the material in the waiting hopper reaches a certain proportion (for example, 80%) of the required weight of the target material and the bin door of the waiting hopper is in a closed state, so that the loading operation and the unloading operation of the waiting hopper are synchronized, thereby reducing the unloading time of the waiting hopper. When the weight of the material in the waiting hopper is less than a preset value (for example, 0 or a certain value close to 0) and the bin door of the waiting hopper is in an open state, the bin door of the waiting hopper can be closed to ensure that the material of the next batch is loaded into the waiting hopper.

[0076] Exemplary apparatus

[0077] Figure 8 is a structural schematic diagram of a material conveying device provided by an example embodiment of the present application. As shown in Figure 8 the material conveying device 70 includes: an initial material determination module 71, configured to determine the types and weights of a plurality of initial materials according to a target material; wherein the target material is obtained by combining the plurality of initial materials; a feeding time calculation module 72, configured to calculate the feeding time of each initial material according to the type and weight of each initial material; the feeding time characterizes the time when the initial material is completely transported from a material bin to a waiting hopper; and a feeding strategy determination module 73, configured to determine the feeding sequence and starting feeding time of the plurality of initial materials according to the feeding time of the plurality of initial materials and the state information of the waiting hopper.

[0078] The material conveying device provided by the present application determines the types and weights of a plurality of initial materials of a target material through the initial material determination module 71, then calculates the feeding time of each initial material from a material bin to a waiting hopper according to the type and weight of each initial material through the feeding time calculation module 72, and finally determines the feeding sequence and starting feeding time of the initial materials according to the feeding time of the initial materials and the state information of the waiting hopper through the feeding strategy determination module 73; that is, the types and weights of the required initial materials are determined according to the target material information, the feeding time of each initial material is calculated, the optimal feeding sequence and starting feeding time are determined in combination with the state information of the waiting hopper, so as to reduce or avoid the waiting time of the waiting hopper, and the total feeding time of the waiting hopper can also be accurately controlled, so as to accurately set the unloading time of the waiting hopper, avoid unloading waiting and incomplete unloading, avoid the long-time storage of the materials in the waiting hopper and the sticking of the materials in the waiting hopper, and improve the efficiency of material conveying.

[0079] Figure 9 is a structural schematic diagram of a material conveying device provided by another example embodiment of the present application. As shown in Figure 9 the above feeding time calculation module 72 can include: a transmission distance acquisition unit 721, configured to acquire the transmission distance between a material bin storing the initial material and a waiting hopper according to the type of the initial material; and a feeding time determination unit 722, configured to calculate the feeding time of the initial material according to the transmission distance, the transmission speed, the unloading speed of the material bin, and the weight of the initial material.

[0080] In an embodiment, as Figure 9As shown, the above feeding strategy determination module 73 can include: a remaining discharge time calculation unit 731, configured to calculate the remaining discharge time of the standby hopper according to the weight information of the material in the standby hopper and the discharge speed of the standby hopper; and a feeding strategy acquisition unit 732, configured to determine the feeding sequence and the starting feeding time of the plurality of initial materials according to the remaining discharge time and the feeding time of the plurality of initial materials.

[0081] In an embodiment, the above feeding strategy acquisition unit 732 can be further configured to: select the initial material with the feeding time greater than or equal to the remaining discharge time and the smallest difference from the remaining discharge time as the first one in the feeding sequence. In a further embodiment, the feeding strategy acquisition unit 732 can be further configured to: arrange the feeding sequence of the initial materials according to the transmission distance between the material bin of the initial material and the standby hopper from small to large.

[0082] In an embodiment, the above feeding strategy acquisition unit 732 can be further configured to: determine the starting feeding time of the first initial material in the feeding sequence according to the remaining discharge time. In a further embodiment, the feeding strategy acquisition unit 732 can be further configured to: determine the starting feeding time of the subsequent initial material of the current initial material according to the feeding time of the current initial material in the feeding sequence.

[0083] In an embodiment, the above feeding strategy acquisition unit 732 can be further configured to: when the first distance between the material bin of the current initial material and the standby hopper is less than the second distance between the material bin of the subsequent initial material of the current initial material and the standby hopper, acquire the material bin distance of the material bin of the current initial material and the material bin of the subsequent initial material of the current initial material along the material transmission direction; calculate the material bin time difference of the subsequent initial material of the current initial material from the material bin of the subsequent initial material of the current initial material to the material bin of the current initial material according to the material bin distance and the transmission speed; and determine the starting feeding time of the subsequent initial material of the current initial material according to the material bin time difference.

[0084] In an embodiment, the above feeding strategy acquisition unit 732 can be further configured to: when the first distance between the material bin of the current initial material and the standby hopper is greater than the second distance between the material bin of the subsequent initial material of the current initial material and the standby hopper, acquire the material bin distance of the material bin of the current initial material and the material bin of the subsequent initial material of the current initial material along the material transmission direction; calculate the material bin time difference of the subsequent initial material of the current initial material from the material bin of the subsequent initial material of the current initial material to the material bin of the current initial material according to the material bin distance and the transmission speed; and determine the starting feeding time of the subsequent initial material of the current initial material according to the material bin time difference and the feeding time of the current initial material.

[0085] In an embodiment, as shown inFigure 9 As shown, the material conveying device 70 can further include a waiting hopper door control module 74, configured to perform opening or closing operation of the waiting hopper discharge door according to the state information of the waiting hopper and the required weight of the target material.

[0086] Exemplary electronic device

[0087] In the following, a mixing plant according to embodiments of the application will be described with reference to Figure 10 The mixing plant can comprise any one or both of the first and second devices, or a stand-alone device independent of the first and second devices, which stand-alone device can be in communication with the first and second devices to receive the acquired input signals therefrom.

[0088] Figure 10 Fig. 1 illustrates a block diagram of a mixing plant according to embodiments of the application.

[0089] As Figure 10 shown, the mixing plant 10 comprises one or more processors 11 and a memory 12.

[0090] The processor 11 can be a central processing unit (CPU) or other form of processing unit having data processing and / or instruction executing capabilities, and can control other components in the mixing plant 10 to perform desired functions.

[0091] The memory 12 can comprise one or more computer program products, which can comprise various forms of computer readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory can comprise, for example, random access memory (RAM), cache memory and / or the like. The non-volatile memory can comprise, for example, read-only memory (ROM), hard disk, flash memory and / or the like. One or more computer program instructions can be stored on the computer readable storage media, which the processor 11 can execute to implement the material conveying method according to embodiments of the application described above and / or other desired functions. Various contents such as input signals, signal components, noise components and the like can also be stored in the computer readable storage media.

[0092] In one example, the mixing plant 10 can further comprise input means 13 and output means 14, which components are interconnected by a bus system and / or other form of connection mechanism (not shown).

[0093] In the case that the electronic device is a stand-alone device, the input means 13 can be a communication network connector for receiving the acquired input signals from the first and second devices.

[0094] In addition, the input means 13 can further comprise, for example, a keyboard, a mouse and the like.

[0095] The output device 14 can output various information including the determined distance information, direction information, etc. to the outside. The output device 14 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, etc.

[0096] Of course, in order to simplify, Figure 10 Only some of the components in the mixing station 10 related to the present application are shown in the figure, and components such as buses, input / output interfaces, etc. are omitted. In addition, the mixing station 10 can include any other appropriate components according to specific application cases.

[0097] Exemplary computer program product and computer readable storage medium

[0098] In addition to the above-mentioned methods and devices, the embodiments of the present application can also be computer program products including computer program instructions which, when executed by a processor, cause the processor to perform the steps in the material conveying method according to various embodiments of the present application described in the above "Exemplary Methods" section of the present specification.

[0099] The computer program product can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, etc., and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device or entirely on the remote computing device or server.

[0100] In addition, the embodiments of the present application can also be computer readable storage media having stored thereon computer program instructions which, when executed by a processor, cause the processor to perform the steps in the material conveying method according to various embodiments of the present application described in the above "Exemplary Methods" section of the present specification.

[0101] The computer readable storage medium can be a combination of one or more computer readable media. The computer readable media can be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium include the following: an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0102] The above description of the disclosed aspects is merely exemplary in nature and is not intended to limit the present disclosure, application, and uses. The description of the aspects together with the accompanying drawings are intended to illustrate and not to limit the scope of the disclosure. The scope of the disclosure is given by the appended claims, and their equivalents.

[0103] The block diagrams of the devices, apparatuses, systems, and methods involved in the present disclosure are merely illustrative examples and are not intended to require or imply that the connections, arrangements, configurations are the only ones that are possible. As will be recognized by one skilled in the art, the devices, apparatuses, systems, and methods can be connected, arranged, configured in any manner. Words such as "include," "contain," "have," etc., are to be construed as open-ended terms (meaning that "comprising," "including," and the like, permit for additional steps, components, etc., not expressly listed or otherwise described), and are not to be interpreted as limiting. The words "or" and "and" are to be construed as the inclusive and / or open-ended term, meaning "and / or," and are not to be interpreted as limiting. The word "such as" is to be construed as the phrase "such as but not limited to," and is not to be interpreted as limiting.

[0104] It is also important to note that the devices, apparatuses, and methods involved in the present disclosure can be embodied in a variety of ways. It is to be understood that the above description is merely one example of the disclosure and is not intended to limit the disclosure, application, and uses. The above description together with the accompanying drawings are intended to illustrate and not to limit the scope of the disclosure. The scope of the disclosure is given by the appended claims, and their equivalents.

[0105] The above description of the disclosed aspects is merely exemplary in nature and is not intended to limit the present disclosure, application, and uses. The description of the aspects together with the accompanying drawings are intended to illustrate and not to limit the scope of the disclosure. The scope of the disclosure is given by the appended claims, and their equivalents.

[0106] The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the forms disclosed herein. Although various example aspects and embodiments have been discussed above, those of ordinary skill in the art will appreciate a variety of modifications, alternatives, permutations, additions, and sub-combinations, which fall within the scope of the application.

Claims

1. A material conveying method, applied in a mixing plant, characterized in that, include: The types and weights of various initial materials are determined based on the target material; wherein the target material is obtained by combining the various initial materials. The feeding time for each initial material is calculated based on its type and weight. The feeding time refers to the time it takes for all the initial material to arrive at the waiting hopper from the material bin; as well as Based on the feeding time of the various initial materials and the status information of the waiting hopper, the feeding sequence and the start feeding time of the various initial materials are determined; The status information of the waiting hopper includes the weight information of the material in the waiting hopper and the unloading speed of the waiting hopper; The step of determining the feeding sequence and start feeding time of the various initial materials based on their feeding time and the status information of the waiting hopper includes: Based on the weight information of the material in the hopper and the unloading speed of the hopper, calculate the remaining unloading time of the hopper; and Based on the remaining unloading time and the loading time of the various initial materials, the loading sequence and start loading time of the various initial materials are determined.

2. The material conveying method according to claim 1, characterized in that, The step of determining the feeding sequence and start feeding time of the various initial materials based on the feeding time of the various initial materials and the status information of the waiting hopper includes: If the weight of the material in the hopper is less than the preset weight, the feeding sequence and start feeding time of the various initial materials are determined according to the feeding time of the various initial materials and the status information of the hopper, and the material conveying of the various initial materials is performed according to the feeding sequence and start feeding time of the various initial materials.

3. The material conveying method according to claim 1, characterized in that, The calculation of the feeding time for each initial material based on its type and weight includes: Based on the type of the initial material, obtain the transmission distance between the material silo storing the initial material and the waiting hopper; and The initial material loading time is calculated based on the transmission distance and speed, the unloading speed of the material bin, and the weight of the initial material.

4. The material conveying method according to claim 1, characterized in that, The step of determining the feeding sequence and start feeding time of the various initial materials based on the remaining unloading time and the feeding time of the various initial materials includes: The initial material whose loading time is greater than or equal to the remaining unloading time and whose difference from the remaining unloading time is the smallest is selected as the first material in the loading sequence.

5. The material conveying method according to claim 1, characterized in that, The step of determining the feeding sequence and start feeding time of the various initial materials based on the remaining unloading time and the feeding time of the various initial materials includes: The feeding sequence of the various initial materials is determined according to the ascending order of the transmission distance between the material bins of the various initial materials and the waiting hopper.

6. The material conveying method according to claim 1, characterized in that, The step of determining the feeding sequence and start feeding time of the various initial materials based on the remaining unloading time and the feeding time of the various initial materials includes: Based on the remaining unloading time, determine the start time for feeding the first initial material in the feeding sequence.

7. The material conveying method according to claim 1, characterized in that, The step of determining the feeding sequence and start feeding time of the various initial materials based on the feeding time of the various initial materials and the status information of the waiting hopper includes: Based on the feeding time of the current initial material in the feeding sequence, determine the start feeding time of the subsequent initial materials of the current initial material.

8. The material conveying method according to claim 7, characterized in that, The step of determining the start feeding time of subsequent initial materials based on the feeding time of the current initial material in the feeding sequence includes: Obtain the distance between the material warehouse of the current initial material and the material warehouse of the subsequent initial material along the material transport direction; Based on the material silo distance and transmission speed, calculate the material silo time difference between the current initial material and the subsequent initial material, from the material conveying device location corresponding to the material silo of the subsequent initial material to the material conveying device location corresponding to the material silo of the current initial material; and Based on the material bin time difference and the feeding time of the current initial material, determine the start feeding time of the subsequent initial materials of the current initial material.

9. The material conveying method according to any one of claims 1-8, characterized in that, Also includes: Based on the status information of the waiting hopper and the required weight of the target material, the opening or closing operation of the unloading gate of the waiting hopper is executed.

10. A material conveying device, characterized in that, include: An initial material determination module is used to determine the types and weights of multiple initial materials based on a target material; wherein the target material is obtained by combining the multiple initial materials. The feeding time calculation module is used to calculate the feeding time of each initial material based on the type and weight of each initial material. The feeding time refers to the time it takes for all the initial material to arrive at the waiting hopper from the material bin; as well as The feeding strategy determination module is used to determine the feeding sequence and start feeding time of the various initial materials based on the feeding time of the various initial materials and the status information of the waiting hopper; the status information of the waiting hopper includes the weight information of the material in the waiting hopper and the unloading speed of the waiting hopper; wherein, determining the feeding sequence and start feeding time of the various initial materials based on the feeding time of the various initial materials and the status information of the waiting hopper includes: calculating the remaining unloading time of the waiting hopper based on the weight information of the material in the waiting hopper and the unloading speed of the waiting hopper; and determining the feeding sequence and start feeding time of the various initial materials based on the remaining unloading time and the feeding time of the various initial materials.

11. A mixing plant, comprising a material silo, a material conveying device, a waiting hopper, and a mixing host, characterized in that, Also includes: A controller for performing the material conveying method according to any one of claims 1-9.

12. The mixing plant according to claim 11, characterized in that, Also includes: A material hopper weighing device is communicatively connected to the controller. The material hopper weighing device is used to collect the weight of the material in the material hopper and send the weight information of the material in the material hopper to the controller.

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